I have a non-GoTo SkyView Pro mount. I modified the hand controller to support ST-4 guiding (using instructions from Shoestring, I think). This is actually working very well, however the slowest guide speed setting is 2x sidereal. I was wondering if anyone knows of a hack to make this more accurate. For example, is there a resistor inside that I could change so that the 4x selection is actually 0.5x sidereal? This way, I could have both a 2x and a 0.5x.

Before I open up the controller, I wanted to check if there are already instructions out there.